Hollyhock Mallow

Malva alcea, known in Scandinavia as Rosenmalva, is a hardy perennial mallow native to Europe and southwestern Asia, naturalised in southern Sweden. It forms a sturdy, bushy plant reaching about one metre, covered from midsummer to early autumn in large, simple, light-pink to rose-red flowers up to 4 cm across. It thrives in full sun and tolerates dry, poor soils. Documented in Swedish gardens since the 1600s, it has been used as an ornamental, a medicinal herb, and even for fibre.

Growing

Start seeds indoors 6–8 weeks before transplanting, sowing 1 cm deep into moist compost once indoor temperatures stay above 15 °C. Germination is slow and irregular, typically 30–90 days; keep the seed tray warm and consistently moist. Alternatively, direct-sow outdoors 1 cm deep once soil temperature reaches at least 10 °C. Thin or transplant to 25 cm between plants, with 50 cm between rows. The plant self-seeds freely once established.

Care

Water regularly until established; once the root system is mature the plant tolerates dry spells well. Feed once at the start of the growing season with a balanced fertiliser — excess nitrogen encourages foliage at the expense of flowers. Deadhead spent blooms to extend flowering and to reduce unwanted self-seeding. Cut back hard to the base after flowering finishes to encourage a tidy regrowth and overwintering crown.

Harvest

Cut flower stems when the first two or three blooms on each stem have fully opened — this also extends vase life. For ornamental dried use, harvest stems just before all buds have opened. Collect ripe seed pods when they turn brown and papery; store seeds dry for future sowing. The long flowering period of approximately 60 days allows successive cutting throughout the blooming season.

In the kitchen

The flowers and young leaves are edible and mild in flavour. Scatter fresh petals over salads or use them as a colourful garnish. Young leaves can be added to salads or lightly wilted like spinach. Flowers can be crystallised with egg white and sugar for cake decoration. The plant was historically used as a medicinal herb; flowers and leaves were prepared as soothing teas and poultices.

Storing

Fresh-cut stems keep in water at room temperature for 5–7 days; re-cut stems daily to prolong vase life. Dried flower heads keep their colour well — hang stems upside-down in a warm, airy space until fully dry, then store in a paper bag away from light for up to 12 months. Dried seed should be kept in a cool, dark, dry place in an airtight container and remains viable for 2–3 years.